Keygrain

Deterministic password generator with encrypted sync. Your master password never leaves your device.

As of June 2026, Keygrain has users in the Privacy & Security category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
0.9.0
Manifest V3

History

1 snapshots

Tracking since Jun 23, 2026.

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DateUsersRatingReviewsVersion
Jun 23, 20260.9.0
Now0.9.0

Permissions & access

Permissions
activeTabalarmscontextMenusscriptingstoragetabs
Host access
https://keygrain.com/*

Screenshots

Keygrain screenshot 1

About

Keygrain generates unique passwords on your device — no vault, no database that hackers can target. Unlike traditional password managers, there is no encrypted vault that can be breached.

## FEATURES:
• No vault — passwords are generated on-demand, never stored
• Autofill — Ctrl+Shift+K or right-click to fill credentials
• TOTP — generate 2FA codes without a separate authenticator app
• Encrypted sync — sync across all your devices (end-to-end encrypted)
• Per-site settings — customize password length, symbols, and rotation
• PIN lock — quick access without retyping your master password
• Auto-lock — clears secret from memory after inactivity
• Visual fingerprint — colored dots confirm your master password is correct
• Works offline — no internet needed to generate passwords
• SSH keys and crypto wallets (for developers)
• Import — migrate from other password managers via CSV export

## HOW IT WORKS:
Enter your master password and email once. Keygrain uses memory-hard key stretching (Argon2id) to derive a unique password for any site. Same inputs, same password — every time, on every device.

## SYNC:
Your service list is encrypted before it leaves your device. The server stores only encrypted data and cannot read your passwords. Self-host the sync server or use keygrain.com.

## PRIVACY:
• Master password never stored or transmitted
• No analytics, no tracking, no telemetry
• No account creation required
• Open source: https://dev.secbytech.com/opensource/keygrain

Also available: Android app and web generator (keygrain.com/generate — try before installing).

Technical

Version
0.9.0
Manifest
V3
Size
113KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
goeemlncopfbcnppjalfmgdalbhlgdha
Developer ID
u41feac7f44c7210731d4d2bd12245f14
Developer Email
[email protected]
Created
Jun 22, 2026
Last Updated (Store)
Jun 22, 2026
Last Scraped
Jun 23, 2026

Data sourced from the Chrome Web Store · last verified Jun 23, 2026.